qq_40577921的博客

package com.itjava.interview;import java.lang.ref.SoftReference;public class SoftReferenceDemo { //内存够用时 不回收 public static void softRef_Memory_Enough() { Object o1 = new Object(...

package com.itjava.interview;import java.lang.ref.WeakReference;public class WeakReferenceDemo { public static void main(String[] args) { Object o1 = new Object(); WeakRefer...

package com.itjava.interview;import java.lang.ref.PhantomReference;import java.lang.ref.ReferenceQueue;public class PhantomReferenceDemo { public static void main(String[] args) throws Inte...